Logging system.



Patented Nov. 28, 1916;

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P. SIMPSON.

LOGGING SYSTEM.

APPLICATION FILED JULY 20, 1915.

Patented Nov. 28, 1916.

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INVENTOR WITNESSES WMX mmmm CRIS! ATTORNEY AilEhlT PHY' SIMPSON, 0FAIRLIE, OREGON.

LOGGING SYSTEM.

eonard.

Application filed July 20, 1915.

To all whom it may concern:

Be it known that I, PHY SIMPSON, a citizen of the United States,residing at Air-lie, county of Polk, State of Oregon, have inventedcertain new and useful Improvements in Logging Systems, of which thefollowing is a specification.

My invention relates to a system of logging timber wherein is used alead spool or sheave block, with a stationary hauling engine or otherpower equipment.

In the present state of the art of hauling logs out of the timber bymeans of ropes wound upon the drum of a stationary hauling engine,wherever a corner is to be turned by the log it has been customary tolocate a common rope block lashed or otherwise fastened, to a convenienttree or stump, and to station thereat an attendant, whose duty it is,when a log arrives at such a block, to signal the engineer at saidhauling engine to cease hauling in the rope. When thus the log has beenbrought to rest adjacent such a rope block, the attendant releases theshackle attaching the log to the hauling rope, and again attaches saidshackle to the hauling rope upon the opposite side of said rope block,and then signals the engineer to proceed with the hauling in.

The object of my invention is to provide such a corner or station aswill automatically change the direction of motion of the log and releasethe rope from the rope block without the presence of an attendant andwithout shutting down or even slowing down the hauling engine, thuseffecting a very considerable saving in the cost of hauling in logs inlumber camps and like places.

I accomplish the above object by means of the construction andarrangements of parts hereinafter described, and illustrated in theaccompanying drawings, which therefore form a part of this applicationfor Letters Patent, and in which:

Figure 1 is a diagrammatic illustration of my invention in use. Fig. 2is a perspective view of the rope sheave block as used with myinvention. Fig. 3 is a longitudinal sectional elevation of the sheaveblock. Fig. 4 is a section on line A-A of Fig. 8. Fig. 5 is a section online BB of Fig. 4.

Like characters of reference indicate like parts throughout the severalviews of the drawings.

Referring to Fig. 1, as a general il1ustra- Specification of LettersPatent.

Patented Nov. $8, 191d.

Serial No. 40,901.

tion of my invention, 1 is the drum of a stationary hauling engine of atype well known and generally used in the art, upon which drum thehauling rope 2 is wound. Said rope is attached, at a distance from thehauling engine, to the log 3 to be hauled in. The method of attachmentis immaterial to my invention, but is usually accomplished by means of ashackle hook and line well known in the art.

Wherever a corner is to be turned by the log 3 I provide an open siderope block l, the detailed construction of which will be describedlater. Said rope block 4. is adapted to be secured to any convenientstump 7, by means of a pin 5, driven therein, said pin passing through aclevis 19 attached to the block a.

Any form of lashing or other method of securing the block f to the stump7, may be used if convenient.

Adjacent said block and stump, and upon the side of same opposite thatof the hauling engine is erected a guide or bunker. Said guide may beconstructed of a heavy timber 8 securely backed up by a mound of earth.9, or any method found convenient in the woods for constructing such aguide may be employed. The guide is placed across the path of log 3, asit approaches the block 4, at such an angle to said path as to cause thelog to be deflected from its path and to slide along said guide underthe influence of the pull from rope 2. When log 3 has arrived at theposition shown at 3 rope 2 has passedover stump 7 and takes the position2 Under the pull of the rope in position 2 the log swings around the endSFof guide 9 and continues on toward the hauling engine.

The body of block t is of inverted lJ shape in transverse section, asshown in Fig. 5, having a top side 10 and depending sides 11 flankingsame. A hub 12 is provided depending from side 10, wherein is fixed apin 13. Upon the upper end of said pin 13 is rotatably mounted a sheave14, the lower flange of which is partially encompassed by a rib 15formed integral with side 10, which rib prevents the rope from becomingcaught beneath the lower flange 0f the sheave.

In order to form a groove of proper size for the hauling rope as well asto form a proper contour of sheave face to allow the passage over sameof the shackle, the sheave is formed of relatively inverted cones with asubstantially semicircular groove at the junction of said cones, asshown in Figs. 1, 2, and 8.

The side 10 is inclined upward, and at the end thereof opposite pin 13is formed a hub 16 adapted to receive a pin 17, said pin beingsubstantially in the horizontal plane passing through the central groove18 of sheave 14, and the pin passes through hub 16 in a direction normalto the longitudinal axis of the block.

Pivotally mounted upon pin 17 is a clevis 19 adapted to receive a pin,rope or other device that may be used for securing the block to a stump.The pivotal connection of said clevis to the block body allows the blockto arise or lower about said pin 17, and thus accommodate itself to thevertical position of the hauling rope.

My invention may be made of any size and constructed of any materialdeemed suitable or convenient for a device of this character, and whileI have illustrated and described a preferred construction andarrangement of parts found desirable in materializing my invention, Iwish to include in the application for Letters Patent all mechanicalequivalents or substitutes that may fairly be considered to come withinthe scope and purview of my invention as defined by the appended claims.

VHaving thus described my invention so that others skilled in the artmay be enabled to construct and to use same, what I claim as new anddesire to secure by Letters Patent is 1. In a logging system for haulinglogs, a hauling rope propelled by any source of power, a sheave blockbase, a sheave rotatably mounted upon said base, a clevis pivotallyattached to said base and adapted to be secured upon the top of a stump,a guide adjacent said block base and said stump, said guide being placedacross the path of the log and at such an angle with said path as willcause the log to be deflected past said stump.

2. In a logging system for hauling logs, a

3. In a logging system for hauling logs, a

hauling rope propelled by any source of power, in combination with meansfor causing a log to turn a corner without lowering the traveling speedof said rope; said means comprising an open sided guide sheave blockdisposed within the reentrant angle included between the two reaches ofsaid hauling rope as it turns the corner, a swivel clevis connected tosaid block and adapted to allow the sheave to lie always in the plane ofsaid rope, said clevis being secured to a stump located outside saidreentrant angle. and a guide adjacent said sheave block and across thepath of the log, said guide being adapted to deflect the log around saidsheave block and around said stump.

at. In a logging system for hauling logs, a hauling rope propelled byany source of power in combination with means for caus' ing a log toturn a corner; said means comprising an open sided guide sheave blockdisposed within the angle included between the two reaches of saidhauling rope as it turns the corner; a swivel clevis connected to saidblock adapted to allow the sheave to lie always in the plane of saidrope, said clevis being secured outside said angle included between thetwo reaches of said rope: and a guide adjacent said sheave block andacross the path of the log, said guide being adapted to deflect the loginto a new path or direction of travel.

In witness whereof I claim the foregoing as my own, I hereunto aiiix mysignature in the presence of two subscribing witnesses.

PHY SIMPSON.

Witnesses:

DAVID E. LOFGREN, CARL S. BROWN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

